The Ultimate Victory of White- over Blacklisting for the Editing of Encrypted Instant Messages Without Decrypting Nor Understanding Them

The European Union Agency for Law Enforcement Cooperation (hereinafter denominated as Europol) has constantly warned society about the unbowed growth of child sexual exploitation in its six issued IOCTAs (Internet Organised Crime Threat Assessments). If already all attempts succeed to thwart grooming as the initiation of contacts between pedophiles and adolescents, then CSEM (Child Sexual Exploitation Material) cannot accrue and SGEM (Self Generated Explicit Material) does not find its way to perpetrators. IM (Instant Messaging) spearheads the list of preferred communication tools that render grooming possible. The consensual editing of encrypted instant messages without decrypting nor understanding them based on black- or whitelisting commits itself to the thwarting of grooming. Existing literature attests whitelisting better functionality and worse performance than blacklisting. In contrast, recent related work objects to the inferior performance of whitelisting, since former experiments for both paradigms happened under incomparable conditions, and demands their remake under fair circumstances. This scholarly piece refutes the inferiority of whitelisting by exhibiting the results of a new test series in which blacklisting screens the complementary set of words that whitelisting does not incorporate. At the end, it corroborates that whitelisting outplays blacklisting and emerges victorious.